Question
PSLE
Gabriel kept his black and brown buttons in two boxes. The ratio of the number of black to brown buttons in the first box was 5 : 7 and it was 1 : 2 in the second box. The two boxes contained the same number of buttons. What fraction of Gabriel's buttons were brown buttons?
2 m

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PSLE
Gabriel kept his black and brown buttons in two boxes. The ratio of the number of black to brown buttons in the first box was 5 : 7 and it was 1 : 2 in the second box. The two boxes contained the same number of buttons. What fraction of Gabriel's buttons were brown buttons?